Shade holder



March 12, 1929. w DUNLAP 1,705,178

SHADE HOLDER Filed Aug. 27, 192'? gwmwio'a wa 49 wkm' atbozueq6 Patented Mar. 12, 1929. I

TWILLIIYAM A. 'IDUNLAP, or PITTSBURGH, PENNSYLVANIA.

SHADE HOLDER.

Application filed August 27, 1927. 'ScrialNo. 215,820.v

My invention refers to in'iprovements in shade holders, particularly adapted for use with electric lamps.

Ordinarily, shades of glass or other fragile or breakable material are clamped in position within or upon a supporting base or frame by means of a clamp or binding screws. These frequently exert excessive or unequal strains on the rim of the shade, tending to fracture or breakage.

Inmy invention I provide a plurality of inwardly located outwardly acting resilient grasping or binding fingers, by which the shade is supported in engagement with 1ts holding ring or frame, and whereby any such damaging strains are avoided.

The improvement consists of a plurality, preferably three screw-actuated resilient fingers properly mounted and locatedin the manner more fully hereinafter described and as shown in the drawings. Referring to the drawings: Fig. 1 is a view in elevation of a shade and its holder in operative position;

Fig. 2 is an enlarged vertical sectional detail view, showing one of theresilient clamping fingers in holding engagement with the shade;

Fig. 3 is a similar view, showing the finger released; I

Fig. 4: is an inner face view of the finger of Fig. 2, and its mounting;

Fig.5 is an enlarged transverse sectional view on the line VV of Fig 2.

In the drawings, A is the shade holder or skirt surrounding and connected with the usual lamp socket to which current is sup.- plied through the usual attaching fixture 2. The holder A is adapted to surround the lamp socket and the lamp, as indicated in dotted lines in Fig. 1, and to also carry the lower shade B, by the means constituting the present improvement.

The holding means for the shade consist of The upper portion oftheholding tongue,

beyond the integral a plurality of inner resilient fingers or prongs pivoting lugs 1, extends upwardly with a slight inward curve, as at therewith. For such trally slotted,'as at 7, providing for insertion therein of the reduced neck 8 of an actuating.

set screw 9, having the inner retaining terminal head 10 and the outer thumb screw head 11. e

The pivoted arm 8 is mounted by its lugs 4 between the inwardly extending hinge sup ports 12 of bracket 13, Said bracket, as shown in Fig. 5, is made of a Ushaped piece of sheet metal which isheld against the inner side of the depending wall 14 of theholder A, by spot welding or other suitable means, and also by'the central screw engaging nut 15. l The latter provides a nut mounting for the threaded stem 9, and has an inwardly extending reduced retaining neck 16 which passes through the wall 14 and therear wall of bracket 13, and is riveted thereover on its inner side, as at 17. v

y means of such construction, supplemented by the spot welding connection re ferred to, the bracket 13 is firmly held in position by'the screw mounting. I

Lugs 4 are pivotally terminals 12 of bracket 18, so that upon adjustment of the screw 9 the arm 3 may be thrust outwardly or inwardly, to clamp or release the shade B.

By reason of the light resilient character of the fingers, and their rounded engagement against the inner upper sides of the shade,

there is no positive or excessive pressure exerted against the shade or undue binding, with suflicient resiliency to compensate for any excessive pressure by either screw.

The screws as shown are mounted at suitablelocatlons around the depending rim 14:

tending to fracture as PATENT orries. .2

connected 1 with the v 13 by the cross pin of the holder A in any suitable number, preferably three, equidistantly spaced, and the construction facilitates easy placement or re moval of the shade by merely loosening 0r tightening the several thumb screws.

The device may be used with any design, shape, or material of shade construction, either glass, porcelain, or enameled sheet metal, with equally good results.

The exact proportions or features of the 6 rovidin 'means for actuating the arm b i slotted engagement purpose the upper portion of the arm is eeninvention may be variously changed or modified by the skilled mechanic, but all such are to be understood as within the scope of the following claims.

What I claim 1. The combination with a shade holder of an inwardly extendingdoublesided bracket,-

a resilient binding arm 'pivotzilly mounted between the sides of the bracket, means'eonnee-ting the'bracket with the shade'holder, and an actuating set screw-.extendingithrough said connecting means engaging the arm.

:2. The combination'witlrashade holder, of an IlHWiLL'dly extending 5 'double iSl'dGClibl'flGkGii,

having downwardly extending terminals,

curved resilient holding 'arm pivotally arm.

mounted between the terminals of the bracket and provided with a slotted terminal, and an adjusting screw having a reduced termirnal'neck engaging the -slotted gportion of the 13. The combination with a shade holder, of a double sided bracket extending inwardly from'the shadeholder, aholding nut fasten- Qn gdhe bracket to the shade holder, a curved resilient arm pivotally mounted bet-ween the sidesofathe bracket and provided with a slotted terminal, and an adjusting screw engag xing ithe anut and having .a reduced "terminal necks engagingithe slotted portion of the arm. a

In testimony whereof I-aiiix mysignature. WJLLLMSI A.. DUNLA"P. 

